(a) Unless otherwise specified in the Invitation, title to property sold under this Invitation shall vest in the Purchaser when full payment is made. If the Invitation provides for loading by the Contractor, title shall not vest until payment and loading are completed.
(b) A Standard Form 97, Certificate of Release of a Motor Vehicle, (or a State certificate of title) shall be furnished for motor vehicles and motor-propelled or motor-drawn equipment requiring licensing.